Selective Hydrolysis of Ethyl 5, 6-Dihydro-4H-pyrrolo [1, 2-b] pyrazole-2-carboxylate and Ethyl 5, 6-Dihydro-4H-pyrrolo [1, 2-b] pyrazole-3-carboxylate as a Key Step in …

AA Nikitenko, MW Winkley, J Zeldis…

Index: Organic Process Research and Development, , vol. 10, # 4 p. 712 - 716

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Citation Number: 14

Abstract

... The sydnone, 13, was extracted with dichloromethane, and the combined organic extracts were ... Further optimization of the selective hydrolysis step resulted in a procedure that used ... allowed us to avoid a chromatographic separation and develop a scalable process for synthesis ...